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30807649611 = 32172412573251
BaseRepresentation
bin11100101100010001…
…110110110101001011
32221112001000202100200
4130230101312311023
51001043224241421
622053002503243
72140304462304
oct345421666513
987461022320
1030807649611
111207a12a152
125b79504b23
132b9c7c5a8b
1416c38057ab
15c049b2726
hex72c476d4b

30807649611 has 48 divisors (see below), whose sum is σ = 47511798048. Its totient is φ = 19169280000.

The previous prime is 30807649591. The next prime is 30807649633. The reversal of 30807649611 is 11694670803.

It is a happy number.

30807649611 is a `hidden beast` number, since 3 + 0 + 80 + 76 + 496 + 11 = 666.

It is a de Polignac number, because none of the positive numbers 2k-30807649611 is a prime.

It is a super-2 number, since 2×308076496112 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30807649661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9474736 + ... + 9477986.

It is an arithmetic number, because the mean of its divisors is an integer number (989829126).

Almost surely, 230807649611 is an apocalyptic number.

30807649611 is a deficient number, since it is larger than the sum of its proper divisors (16704148437).

30807649611 is a wasteful number, since it uses less digits than its factorization.

30807649611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772 (or 3769 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 30807649611 in words is "thirty billion, eight hundred seven million, six hundred forty-nine thousand, six hundred eleven".

Divisors: 1 3 9 17 51 153 241 257 723 771 2169 2313 3251 4097 4369 9753 12291 13107 29259 36873 39321 55267 61937 165801 185811 497403 557433 783491 835507 1052929 2350473 2506521 3158787 7051419 7519563 9476361 13319347 14203619 39958041 42610857 119874123 127832571 201357187 604071561 1812214683 3423072179 10269216537 30807649611